htaccess redirect urls with parameters to specific directory

i want to redirect specific urls from

http://ift.tt/1GgqmDf
to
http://ift.tt/19EItWV

and all urls from

http://ift.tt/1GgqmDh
to
http://ift.tt/19EItWY

ive tried some redirects but i cant get it done right. Please help me!